package com.zt.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.zt.reggie.common.Constant;
import com.zt.reggie.common.R;
import com.zt.reggie.entity.Employee;
import com.zt.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.convert.PeriodUnit;
import org.springframework.stereotype.Controller;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * @author 挚爱之夕
 * @version 1.0
 * @implSpec com.zt.reggie.controller
 * @since 2023 - 02 - 23 - 16:41
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    //登录
    @PostMapping("/login")
    public R<Employee> login(@RequestBody Employee employee, HttpServletRequest request){
        // 1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(Employee::getUsername, employee.getUsername());
        Employee queryEmployee = employeeService.getOne(wrapper);
        //3、如果没有查询到则返回登录失败结果
        if(queryEmployee == null){
            return R.error("登录失败");
        }
        //4、密码比对，如果不一致则返回登录失败结果
        if(!queryEmployee.getPassword().equals(password)){
            return R.error("登录失败");
        }
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(queryEmployee.getStatus() == 0){
            return R.error("账户已被禁用");
        }
        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute(Constant.SESSION_EMPLOYEE, queryEmployee.getId());

        return R.success(queryEmployee);
    }

    //退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //1、清理Session中的用户id
        request.getSession().removeAttribute(Constant.SESSION_EMPLOYEE);

        //2、返回结果
        return R.success("退出成功");
    }

    //新增员工
    @PostMapping()
    public R<String> save(@RequestBody Employee employee, HttpServletRequest request){
        log.info("员工信息:{}", employee.toString());
        //初始密码12345
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//        Long userId = (Long)(request.getSession().getAttribute(Constant.SESSION_EMPLOYEE));
//        employee.setCreateUser(userId);
//        employee.setUpdateUser(userId);
        //公共字段 使用 MybatisPlus 提供的公共字段自动填充功能。

        employeeService.save(employee);

        return R.success("新增员工成功!");
    }


    //分页查询
    @GetMapping("/page")
    public R<Page<Employee>> page(Integer page, Integer pageSize, String name){
        log.info("page={}, pageSize={}, name={}", page, pageSize, name);

        //分页构造器
        Page<Employee> pageInfo = new Page<>(page, pageSize);
        //条件构造器
        LambdaQueryWrapper<Employee> wrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        wrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);
        //添加排序排序
        wrapper.orderByDesc(Employee::getUpdateTime);

        employeeService.page(pageInfo, wrapper);
        return R.success(pageInfo);
    }

    //修改员工信息
    @PutMapping
    public R<String> update(@RequestBody Employee employee, HttpServletRequest request){
        log.info(employee.toString());

        //修改者为当前用户
//        Long empId = (Long)request.getSession().getAttribute(Constant.SESSION_EMPLOYEE);
//        employee.setUpdateUser(empId);
//        employee.setUpdateTime(LocalDateTime.now());
        //根据id 更新
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    //根据id查询员工信息
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("查询员工信息, id = {}", id);
        Employee employee = employeeService.getById(id);
        if(employee != null)
            return R.success(employee);
        return R.error("没有查询到对应员工信息");
    }


}
